Dice-shaker.



No. 632,220. Patented sept. 5, m99.

" c. J. LEHMANN.

f DICE SHAKER.

(Application filed Nov. 10, 1898.1

m: ncnms PETERS :zo4 FuoYaLlTwc.. WASHINGTON. D. t;

NTTEE STATES PATENT EETCE.

CHARLES J. LEHMANN, OF HAMILTON OHIO, ASSIGN OR TO THE BRUNHOFFMANUFACTURING COMPANY, OF SAME PLACE.

DICE-SHAKER.

SPECIFICATION forming part of Letters Patent No. 632,270, datedSeptember 5, 1899. Application filed November l0, 1898. Serial No.696,024. (No model.)

T0 all whom t may concern.-

Be itknown that I, CHARLES J. LEHMANN, a citizen of the United States,residing at Hamilton, in the county of Butler and State of Ohio, haveinvented certain new and useful Improvements in Dice-Shakers, of whichthe following is a specification.

My invention relates to improvements in dice-shakers.

One of its objects is to provide reliable and simple mechanism forshaking or throwing the dice in an inclosing case.

Another object is to provide mechanism for imparting a compoundvibration to the platform upon which the dice rest, which results in thethorough shaking or throwing of the dice.

The invention also consists in certain details of construction andarrangement, all of which will be more fully set forth in thedescription of the accompanying drawings,form ing part of thisspecification, in which* Figure lis a central vertical section throughmy improved dice-shaker- Fig. 2 is a section on line 0c or, Fig. l. Fig.3 is-a perspective View, partly in section, showing the manner ofvibrating the platform. Fig. 4t is a similar View to Fig. 3, showing theparts in another position.

A represents the frame of the shaker, and B a glass dome hinged thereto.

The operative mechanism consists of a platform or disk C, provided onits under side with a steml D, which passes through a hole in theconical bracket E and through an opening in the end of the crank-arm F,Which is mounted upon the Vend of a shaft G. This shaft G is rapidlyrotated a number of times, first in one direction and then in theopposite direction, by means of a train of gears H I J on the shafts GK, said train of gears being driven by means of a segment L on the endof a hand-lever M, the outer end m of which projects through the side ofthe case A.

N represents the pivot on which the lever M reciprocates, and O a springto return the lever to its original or normal position.

P P represent frame-pieces clamped together by screws p p and held tothe frame A by screws tapped into the ears a. These frame-pieces P Pserve to journal the shafts G K and lever M and support the conicalybracket E, which carries the vibrating disk.

R represents a lug or ear on the outside of frame A, against which thethumb or finger rests in operating the lever M.

S represents a chamber formed by the dome B and platform C, Within whichthe dice are thrown or shaken.

Referring to Figs. 3 and 4., it will be seen 6o revolutions, in each ofwhich the platform C,

on account of the engagement of its stem D with the crank-arm F, assumesa series of positions of different angles, of which Fig. 4 representsthe maximum. It will also be noted that as the crank-arm F rotates theplane in which the platform C is tilted continually changes and that theimpulse imparted to the dice causes them to whirl or spin, therebygiving them a thorough shaking. As soon as the lever M is released thespring O revolves the shaft C in the opposite direction until the partshave resumed their original position.

I believe I am the rst to apply a compound vibration to the platform of.a dice-shaker, and I do not wish to limit myself to the particularmechanism employed to produce this result.

Having described my invention, what I claim isr 1. In a dice-shaker, achamber to hold the dice consisting of a dome or cover and a vibratingplatform, a stern projecting from the under side of said platform, abracket forming a step bearing and support for said stem and platform ata point close to the platform leaving the lower end of the stern free tobe vibrated laterally in various planes, an actuating-lever andtransmitting mechanism, substantially as specified for vibrating saidstem laterally, alternately in two or more different planes,substantially as specified.

2. In a dice-shaker, a chamber to hold the dice consisting of a dome orcover and a vibrating platform provided upon its under side with astern, a bracket forming a step bearing or support for said stem andplatform at 'roo a point close to the platform, leaving the lower end ofthe stem free to be vibrated, and lever and transmitting mechanismsubstantially as described for laterally vibrating the lower end of thestem, substantially as speciied.

3. In a dice-shaker a chamber to hold the dice consisting of atransparent cover and a vibrating platform, a stem connected to theunder side of said platform, a conical bracket forming a step-bearingfor said stem and platform, and lever mechanism substantially asspecified for laterally vibrating the lower end of said stem in a seriesof different planes, substantially as specified.

4. In a dice-shaker a dice-chamber consisting of a dome or cover and aVibrating platform, said platform being stepped and supported by meansof a stem secured to the n nder side thereof, in a bracket or framepiece, a shaft carrying a horizontally revolving crank-arm engaging thelower end of said stem to vibrate the platform, and means substantiallyas shown for revolving said shaft` 5. In a dice-shaker a vibrating4platform stepped and supported by means of a stem projecting from theunder side thereof, upon a bracket or frame piece, a segment-lever heldnormally in a iixed position by means of a spring, transmitting-gearsengaging and transmitting motion from said lever to a shaft carrying ahorizontally-revolving crank-arm, which engages the lower end of theplatformstem and Vibrates the platform, substantially as specified.

In testimony whereof I have hereunto set my hand.

CHARLES J. LEHMANN.

Vitn esses:

C. WV. MILES, OLIVER B. KAISER.

